Radial SB-6 Isolator Passive Audio Isolator
by Radial

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Radial SB-6 Isolator 2-Channel Passive Audio Isolator
The Radial StageBug® SB-6 is a high performance 2-channel passive audio isolator designed to accommodate both balanced and unbalanced signals and work effectively at eliminating noise when used with instruments, consumer electronics as well as professional line-level devices.

The design begins with ¼" TRS inputs and outputs to accommodate both TRS and mono type connectors. The unique circuit retains the balanced signals or automatically converts them from hi-Z to lo-Z (¼" mono to TRS) or lo-Z to hi-Z (1/4"TRS to mono) depending on the connector in use. You simply connect and the SB-6 does the work for you! Inside are two ultra-linear Eclipse transformers that sound great as they deliver ruler flat performance from 20Hz to 20kHz. This is augmented with a -10dB input pad to handle extra loud source devices and a polarity reverse on output B for phase aligning stereo signals. As the circuit is passive, no power is required – simply plug in and play. As with all Radial products, the SB-6 is made in Canada and features 16 gauge steel construction for use on the road and finished in a durable powder coat finish.

These features combine to make the SB-6 Isolator a wonderful solution to help rid system noise in two channel audio systems, stereo guitar racks and pedalboards.

Radial SB-6 Isolator 2-Channel Passive Audio Isolator
  • Isolator for balanced and unbalanced signals
  • Eliminates hum and buzz caused by ground loops
  • Exceptionally linear from 20Hz to 20kHz
  • Automatically configures for hi-Z or lo-Z signal chains

Radial SB-6 Isolator 2-Channel Passive Audio Isolator
  • Audio Circuit Type: Passive Transformers
  • Frequency Response: 20Hz-20KHz +/-1db
  • Dynamic Range: >140db
  • Maximum Input: >+25dBu
  • Gain: 2dB
  • Total harmonic Distortion: <0.0008% @ 1kHz
  • Phase Deviation: >5° @ 30Hz
  • Input Impedance: Varies with Load/47K
  • Output Impedance: 600 Ohms
  • Transformer: Eclipse Custom
  • Input Pad: -15dB
  • Polarity: 180deg reverse
  • Ground Lift: Disconnects TRS sleeve at output
  • Input Connector: 1/4" TRS phone
  • Output Connectors: 1/4" TRS phone
  • Construction: 14 gauge steel chassis & outer shell
  • Finish: Durable powder coat
  • Size (L x W x D): 3.92 x 2.54 x 1.7 in (100 x 65 x 43 mm)
  • Weight: 0.9 lbs (408 g)
  • Power: Passive, no power required
  • Conditions: For use in dry locations only between 5°C and 40°C

Radial SB-6 Isolator 2-Channel Passive Audio Isolator
(1) Radial SB-6 Isolator